TELEPHONE CONSOLES I A AND 2A TYPES IDENTIFICATION AND ASSEMBLYOF PARTS

Transcription

1 BELL SYSTEM PRACTICES SECTION C Stations Operation Manual Issue 1, November, 1962 Station Sets AT&TCo Standard TELEPHONE CONSOLES I A AND 2A TYPES IDENTIFICATION AND ASSEMBLYOF PARTS 1.00 GENERAL 2.02 Capacity of the 1A-type console is 6 to 12 trunks and loops, 12 control keys, and 6 This section covers the identification and as- miscellaneous keys. Capacity of the 2A-type consembly of parts, mounting cord, and connector sole is 6 to 30 trunks and loops, 12 controls keys, cables for the 1A- and 2A-type telephone consoles, and 6 miscellaneous keys. Refer to Table A for types of 1A telephone consoles, and to Table B for 2.00 IDENTIFICATION typesof2a telephone consoles, alsothepbx systemstha theycanbe usedwith The 1A-and 2A-typetelephoneconsoles havebeendevelopedfor universaluse in 2.03 Tranrnission fromthehandsetorheadtelethe701b,757a,ess 101,andNo.5 crossbarpbx phonesetusedintheconsoletothepbx systems (see Fig. 1 and 2). The telephone con- system is by means of a transistorized amplifier, sole provides trunk and loop pickup and attendant which is equivalent to a 151E-type on a printed dialing from a cordless telephone console, wiring board and a 425E network. WE90059:5 KS-16108,L 2 SWITCH SPST _ POTENTIOMETER APPARATUS BLANK LAMP SOCKET _ APPARATUS BLANK HOUSING ASSEMBLY KEY 598F KEY 598F P-85A9_ DIAL 8C_ IVORY-50 GREEN-51 LIGHT BEIGE-60 LIGHT GRAY- 61 Fig A-Type Telephone Console (_) American Telephone and Telegraph Company, 1962 Printed in U. S.A. Page 1

2 SECTION C LAMP LAMP KEY 598F SOCKET SOCKET APPARATUS BLANK KEY DIAL HOUSING APPARATUS 2.ID ASSEMBLY BLANK P-84AO -)(" IVORY- 50 GREEN-51 LIGHT BEIGE-60 LIGHT GRAY-61 Fig. 2--2A-Type Telephone Console 2.04 A G3CR hand set or a 52-type head tele- 21D dc pushbutton dial. It includes the phone set, both of which are equipped with mounted dial, signal volume control, signal on-off a cord terminating in a 289- or 396-type double switch, and three lamps. This assembly is plugged plug, may be plugged into one of the double jacks into place before the housing is assembled to the located at both ends of the console. The handset console and is repla'ceable on the same basis or head telephone set is not specified as part of the console. The output of the handset or head 2.08 Each 598-type key and each 15B apparatus telephone set transmitter is amplified by the trail- blank is replaceable on a plug-in basis. sistorized printed circuit type amplifier. G3CR hand sets are available in the same colors as the 2.09 All the 598-type keys are automatically telephone consoles and must be ordered sepaplugged into circuit when assembled in the rarely, console and are readily removed for replacement A small KS-16107, List 2 speaker mounted The keys are not interlocked mechanically and inside the console is used for audible sig- each plunger is nonlocking except for the 598F naling. A low intensity interrupted 540-cps tone key which has one turnbutton. signal input to the console is amplified by a transistorized signal amplifier on the same printed 2.10 Telephone consoles are furnished without wiring board as the voice amplifier. The ampli- mounting cord so that they can be adapted fled signal is applied to the small speaker through to any of four PBX systems without modification. a volume controlling potentiometer. This is accomplished by means of a plug-in type mounting cord selected for the PBX system to be 2.06 The signal volume control which can re- served. Refer to Table C for mounting cord and duce the signal to near off and a signal on- connector ca.bles used with each system. off switch are located on the dial panel Function designations for keys and lamps 2.07 A separate dial assembly permits the use are supplied with each console as clear of an 8C rotary, 25A3 TOUCH-TONE, or plastic labels which have adhesive backing for at- Page 2

3 ISS 1, SECTION C taching to the mat as required. Consoles used with No. 5 crossbar or 701 CENTREX should position CENTREX label next to the Bell System symbol which is shown in Fig. 1 and 2. For additional information on face s and bezels, refer to Tables D and E. Lift front assembly from housing being careful not to bend the spring clips which hold assembly to the housing To raise Remove 3.00 DISASSEMBLYOF PARTS 3.01 To remove Grasp up. front top of front Grasp bottom lift up. of front assembly front mounting assembly" assembly. Loosen frame mounting screws, shown in Fig. 3 for 1A-type consoles and Fig. 4 for 2A-type consoles. assembly" frame and lift assembly and 3.03 With frame mounting raised as in Fig. 3 and 4, access can now be gained for clearing of trouble or replacement of parts. Console must also be in this position when installing mounting cord. FRAMEMOUNTINGASSEMBLY FRAMEMOUNTING SCREWS KNOBASSEMBLYP-14A913 FRAMEMOUNTING SCREWS DIAL PLUG 425D NETWORK S Fig. 3--1A-Type Telephone Console, Frame Mounting Assembly Raised Page 3

4 SECTION C FRAME MOUNTING FRAME MOUNTING FRAME MOUNTING SCREWS P-14E861 ASSEMBLY SCREWS P-14E861 MOUNTING JACK SPEAKER _ BOARD PRINTED STRIP TERMINAL JACK 476A P-I IE513 ASSEMBLY WIRING ASSEMBLY ASSEMBLY P-14E809 P-14E809 P-14EI39 Fig. 4-2A-Type Telephone Console, Frame Mounting Assembly Raised TABLE A 1A-TYPE TELEPHONECONSOLE i,,, i,,,m, I IIII III I I I II II II I I I I I IIIII II Trunk Console Key Pos Dial Key Pos and PBX Code... Type Loop Served No. 1 Left No. 2 No. 3 No. 4 No. 5 Pickups 1AI-*'... '6 " 1A2-* 12 1A3-* 598F 8C 598F 598E 6 701, 757 1A4-* 598E 12 As-*... osb A6-* -t , 757, 598F 25A3 598F 1A7-* 598E 6 ESS 101 1A8-* 598E 12 1A9-* 6 1A10-* 105]] F 21D 598F 701, No. 5 1Al1-*, 598E 6 1A12-* 598E 12 Note 1" _ socket for 12 lamps associated with each pickup position. Note 2: _ apparatus blank_ replaceable by 598-type key. Note 3" 598E _ miscellaneous use key_6-button, nonlocking, 3 make contacts at each plunger. Note #: 598F_control key_6-button, nonlocking, 3 make contacts at each plunger, top button turns for cutoff. Note 5" _ line pickup key_ 6-button, nonlocking, 2 sets of transfer contacts at each plunger. Note 6: 8C_ Rotary type _on a plug-in assembly, P-14E296. Note 7: 25A3_ TOUCH-TONE type_on a plug-in assembly, P-14E297. Note 8: 21D_ DC pushbutton type includes plug-in assembly. * Code is completed by color suffix" -51 green, -58 white,-60 light beige, -61 light gray. Page 4

5 ISS 1, SECTION C TABLE B 2A-TYPE TELEPHONE CONSOLE i i iiiii ilu. i Trunk Key Pos Key Pos and Console... Dial... Loop PBX Code Type Pick- Served No. 1 Left No. 2 No. 3, 4, 5 No. 6 No. 7 No. 8 ups 2AI-* ' A2-* I05B 24 2A3-* 2A4-* 598F 8C 598F 598E , 757 2A5-* 598E 24 2A6-* 598E 30 2A7-* I05B... I05B 18 2A8-* 24 2A9-* 2A10-* 598F 25A3 598F 598E , 757 2A11-* 598E 24 2A12-* 598E 30 _2A13-* A14-* 24 2A15-* 2A16-* 598F 21D 598F 598E , No. 5 2A17-* 598E 24 2A18-* " 598E 30 J II IIIIIIIII,1II Jill Nate",, 598E, 598F,, 8C, 25A, and 21D are described in notes under Table A. * Code is completed by color suffix" -51 green,-58 white, -60 light beige, -61 light gray. TABLE C MOUNTING CORD AND CONNECTOR CABLE FOR 1A- AND 2A-TYPE TELEPHONE CONSOLES No. i i ii i i ii i Mounting Cord Connector Cable... i PBX Tel Console... System 1A-Type 2A-Type 1A-Type 2A-Type...,, 5 Crossbar (Pre-Standard) No. 5 Crossbar (Standard) D150L-* D250D-* D150G-* D250A-* A75A A75A plus A50B 701B PBX D150H-* D250B-* 757A PBX D150J-* " D250C-*... ESS 101 D100B-* None Mfd... ASOB... i i i i i i i i i ii, Ill * Each cord is available in green -51, white -58, light beige -60, and light gray-61. Page 5

6 SECTION C TAR!_G n!a-type TELEPHONE CONSOLE FACEPLATEAND BEZELASSEMBLY...,,,,,,,,,,,,,,,, Mat * Type Faceof Face- Includes Bezel Console Assembly * Five Colored Mats Assembly 1Ai... 1A2-1A3 ' 38A P-14E319 P-14E348 P-14E941 1A4 ia5... 1A6 1A7 1A8 1A9 1A10 1All 1A12 llllll i ii i i i i ill i i... Included in face assembly. 38B P-14E321 P-14E338 P-14E942 38C P-14E320 P-14E332 P-14E943 TABLE E 2A-TYPE TELEPHONE CONSOLE FACEPLATEAND BEZELASSEMBLY... Mat * Type Face- Face- Includes Five Bezel of * Colored Assembly Console Assembly Mats 2A1... ii Page 6 6 Pages,,, 2A3 2A4 39A P-14E819 P-14E825 P-15E034 2A5 2A6... 2A7... 2A8 2A9... 2A10 39B P-14E827 P-14E833 P-15E035...,... 2All 2A12 2A13 2A14 " 2A15 " _ 2A16,,,,_ 39C P-14E834 P-14E840 P-15E i_ 2A17 2Ai8... jl i ii i,,,,,,,,,,,,,,,,,,,,, :: Included in face assembly.